YJIT Benchmarks

Details for Benchmarks at 2022-02-21 07:12:22

Overall YJIT is 31.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.7% faster than CRuby!

The basic "faster" measurement is the geomean of all "headlining" x86 benchmarks on this page.

Headlining Benchmarks

These are "headlining" because the "overall" speedup above is based on these benchmarks specifically.

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

Other Benchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

MicroBenchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

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Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench No JIT warmups No JIT iters MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 170 20 170 75 170 20 170
hexapdf 5 15 20 15 20 15
liquid-render 5 151 20 151 75 151 20 151
mail 5 122 20 122 75 122 20 122
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 76 20 76 75 76 20 76
discourse 5 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 963 20 963 75 963 20 963
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 38 15 20 15
30k_ifelse 5 56 20 56 75 56 20 56
30k_methods 5 21 20 21 30 21 20 21
cfunc_itself 5 440 20 440 75 440 20 440
fib 5 320 20 320 75 320 20 320
getivar 5 771 20 771 75 771 20 771
keyword_args 5 373 20 373 75 373 20 373
respond_to 5 109 20 109 75 109 20 109
setivar 5 1784 20 1784 75 1784 20 1784

Different Ruby configurations want different amounts of warmup. With no JIT, CRuby needs hardly any. YJIT and MJIT 3.0 both warm up quite quickly, while MJIT in 3.1 often slows down for a time as it compiles, after an unpredictable delay.

Benchmark YJIT Stats

Hover your cursor over the benchmark names for descriptions of each benchmark.

bench Exit Report Inline Outlined Comp iSeqs Comp Blocks Inval Inval Ratio Bind Alloc Bind Set Const Bumps
activerecord (click) 993553 761543 185 1199 0 0% 0 0 0
hexapdf (click) 1118737 916625 600 8172 613 7% 0 0 320
liquid-render (click) 495633 394609 143 1568 95 6% 0 0 1
mail (click) 883921 662911 324 5333 125 2% 0 0 39
psych-load (click) 334353 264457 59 434 1 0% 0 0 0
railsbench (click) 2529297 1928035 1297 9260 268 2% 0 0 26
binarytrees (click) 150801 115689 11 59 0 0% 0 0 0
discourse (click) 22703761 11404111 3134 285465 261954 91% 2 0 133
erubi (click) 325393 257812 10 79 0 0% 0 0 0
erubi_rails (click) 1908881 1438479 262 1872 18 0% 0 0 3
fannkuchredux (click) 165073 126716 8 189 0 0% 0 0 0
lee (click) 376977 297494 45 587 69 11% 0 0 12
nbody (click) 160593 123219 10 159 0 0% 0 0 0
optcarrot (click) 487825 428849 198 3576 20 0% 0 0 0
rubykon (click) 292689 236398 140 1539 1 0% 0 0 0
30k_ifelse (click) 5540369 4336342 9263 57805 0 0% 0 0 0
30k_methods (click) 2155025 1644475 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149265 114318 8 50 0 0% 0 0 0
fib (click) 148177 114304 8 39 0 0% 0 0 0
getivar (click) 149905 116815 8 66 0 0% 0 0 0
keyword_args (click) 150161 114959 9 52 0 0% 0 0 0
respond_to (click) 151953 116101 8 65 0 0% 0 0 0
setivar (click) 150097 115290 8 39 0 0% 0 0 0

YJIT stats correspond to the YJIT stats exit report.

Note: currently, all stats are collected on x86_64, not ARM.

Raw JSON data files

All graphs and table data in this page comes from processing these data files, which come from benchmark runs.